[derpherpsson]

A far more effective way to sabotage the infrastructure would be to plant a bomb there, in the hole. It does not even have to be a functional bomb. It's enough to just make the repair technicians fear for their lives. It will take a lot of time for them to call a bomb disposal unit, and so on.

And then you repeat that a couple of times at random places. If you don't want to kill people, the first bombs should be duds, but occasionally some of the later bombs should be real, so they don't let down the guard, but learn to fear the repair jobs.

Then after that, EVERY SINGLE repair job, even when you didn't actually sabotage it yourself, would become super-expensive and take lots-and-lots of time.

After you trained them, you can lower the number of sabotages with mostly duds, and the occasional real bomb, to just once every couple of months. They still need to handle every single repair job as if you had been there. Minimal cost for you, maximized cost for them.

There. I optimized it for you.

[Freak_NL]

It also scales up law enforcement's efforts to catch you, and pushes the criminal act you would perform up to terrorism. There are not many who would be willing to throw away their lives for acts that mostly just cause a bit of economic damage.

[philprx]

I would tend to think that already this case would be considered as terrorism as it is an attack on national critical infrastructure.

[derpherpsson]

Yeah. It's fortunate that we are not psychopaths hellbent on causing mayhem.